Grinding-machine.



WITNESSES A. G. RODGERS.

GRINDING MACHINE.

APPLICATION FILED SEPT. 28, 1912.

Patented Mar. 4, 1913.

INVENTOR BEST AVAILABLE CQF 'UNITED STATES P ENT oFFIoE.

AS'HMEAD o. RODGERS, or NIAGARA FALLS, NEW YORK, ASSIGNOR ro THE CARBO- RUNIDUM COMPANY, or NIAGARA rALLs, NEW YORK, A CORPORATION or PENN SYLVANIA.

' GRINDING-MACHINE.

Specification of Letters Patent.

Patented Mar. 4,1913.

-Appllcatlon filed September 28. 1912. Serial No. 722,916.

To all whom it may concern Be it known that I, ASIIMEAD G. Roocnas, a resident of Niagara Falls, in the county of Niagara and State of New York, have invented a new and useful Improvement in Grinding-Machines, of which the followin is a full, clear, and exact description, re erence being had to the accompanying drawings, forming part of this specification. in which Figure 1 is a view partly in side elevation and partly in vertical section of a grinding machine embodying my invention; Fig. 2 is a detail sectional view showing the grinding wheel in one position in full lines and in a different position in dotted lines.

My invention has relation to certain new and useful improvements in rinding machines, and is designed to rovide a machine havin its grinding whee so mounted that the w ieel can be bodily turned about a horizontal axis, so as to bring it into the various angular positions best suited for different kinds of work.

The nature of my invention will be best understood by reference to the accompan ing drawings, in which I have shown he preferred embodiment thereof and which will now be described, it being premised, however, that various changes may be made in the details of construction an arrangement of the several parts without departing from the spirit and scope of my invention as defined in the appended claims.

In these drawings, the numeral 2 designates the frame of the machine, and which is provided with a suitable clamp 3, for attaching it to a table, bench or other suitable support.

t designates the grinding wheel, which is secured to a shaft 5. This shaft is provided with bearings in a casing member 6, having a removable end cap 7, and also having a sleeve extension 8. This extension 8 telescopes rotatably within the tubular casing portion 2 of the frame 2. The wheel shaft 5 is shown as having a s iral gear 9, fixed thereto, and meshing with a spiral gear 10 on a shaft 11, which 18 at substantially right angles to the shaft 5 and which is provided with a hearing within the sleeve 8 and with another bearing 12 in the opposite end portion of the tubular casing portion 2". The shaft 11 carries a spiral gear 13, which meshes with a spiral gear wheel 14, on a shaft 15, parallel with the shaft 5 and having hearings in the frame 2. In the resent instance, the shaft 15 is shown as a apted to be driven by a hand crank 16, but it may be driven in any suitable manner.

It will be readily seen that the sleeve extension 8 of the casing and the supporting member (3 can be rotated within the tubular casing 2 through an angle of ninety degrees, so as to turn the wheel bodily about the axis of the shaft 11. The wheel may therefore be adjusted to any desired angular position between the vertical position shown in full lines in Figs. 1 and 2, and a substantially horizontal position above the shaft 11. The wheel may be secured in its adjusted position by any suitable means. In the drawings, I have shown a clamp screw 17, having a bearing in the tubular portion 2" and formed with a tapered portion 17, which is adapted to frictionally en gage the sleeve extension 8.

The numeral 18 designates a work rest which is adjustably secured to the cap 7 of the oasin 6.

19 designates a thrust bearing for the shaft 11, carried by the cap 7.

WVhen the wheel is turned from the vertical position shown in full lines in Fig. 2 to an angular position, such as shown in dotted lines in said figure, the "ears 9 and 10, of course, turn as a unit with the shaft 11, the latter rotating in its bearing 12, and the sleeve extension 8 rotating in its seat. The spiral gear 13 turns on the gear 14.

The advantages of my invention will be apparent, since it provides a grinding machine in which the wheel may be quickly adjusted to any desired position. Instead of employing spiral gears, I may, of course, use bevel gears and various other changes may be made in the details of the parts.

I claim:

1. A grinding machine, comprising a horizontal shaft in a fixed mounting, and a bearim support carrying a grinding wheel whose sliaft is perpendicular to said driving shaft and is connected to said driving shaft by gears, said support being concen tric with said driving shaft and revolubly mounted in said fixed mounting, substantially as described.

2. A grinding machine, com rising a horizonta shaft in a fixed mounting, and a llll bearing support carrying a grinding wheel whose shaft is perpendicular to said driving shaft and is connected to said driving shaft by gears, said support being concentric with said driving shaft and revolubly mounted in said fixed mounting, together with clamping means between said fixed mountin and said support, substantially as described.

3. A rinding machine, comprising a horizonta shaft in a fixed mounting, and a bearing support carryinga grinding wheel whose sha t is-perpendicular to said driving shaft and is connected to said driving shaft by gears, said support being concentric with said drivin shaft and revolubly mounted in said fixed mounting, and said support also forming one bearing of said driving shaft substantially as described.

4. A grinding machine, comprising a horizontal shaft in a fixed mounting, and a bearing su port carrying a grindin wheel whose sha t is perpendicular to said driving shaft and is connected to said driving shaft by gears, said support being concentrio with said drivin shaft and revolubly mounted in said fixed mounting, said suprt also forming one bearing of said drivmg shaft, together with a driving gear, and gearing connecting it to said drivin shaft, said support forming a ear case or said gearing, substantially as escribed.

5. A grinding machine, comprising a horizontal shaft in a fixed mounting, and a bearing su port carrying a grinding wheel whose sha t is perpendicular to said driving shaft and is connected to said driving shaft by gears, said sup ort being concentrio with said drivin s aft and revolubly mounted in said fixe ort also forming one bearing of said driving shaft, together with a driving gear, and gearing connecting it to said drivin shaft, said support forming a gear case for said gearing, and said support carrying the end thrust bearin for said driving shaft, substantially as escribed.

In testimony whereof, I have hereunto set my hand.

ASHMEAD G. RODGERS.

\Vitnesses:

SAMUEL J. DEVLIN,

THOS. DEAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

mounting, said sup- 1 

